Mini DC-DC 4.5-24V To 0.8-17V 3A Step Down Power Supply Module Voltage Buck Converter Adjustable 97.5% 1.8V 2.5V 3.3V 5V 9V 12V

Description

 Mini DC-DC 4.5-24V to 0.8-17V 3A Step Down Power Supply Module Voltage Buck Converter Adjustable 97.5% 1.8V 2.5V 3.3V 5V 9V 12V

The Mini DC-DC Step Down Buck Converter is a high-efficiency power supply module designed to step down voltages from 4.5V–24V to a stable 0.8V–17V output. With a peak current capacity of 3A and conversion efficiency up to 97.5%, this module is ideal for hobby electronics, Arduino projects, robotics, and embedded systems.

Key Specifications

• Input Voltage: DC 4.5V–24V

• Output Voltage: Adjustable 0.8V–17V or fixed values (1.8V, 2.5V, 3.3V, 5V, 9V, 12V)

• Output Current: Peak 3A, continuous 2A recommended

• Efficiency: Up to 97.5%

• Temperature Range: -40℃ ~ +85℃

• Enable Pin (EN): High = Work (2–5V), Low = Off (~0V)

Features and Benefits

• Ultra-compact design for easy integration

• Adjustable or fixed output for flexibility

• High conversion efficiency minimizes heat

• Reliable performance in DIY and professional projects

• Supports a wide range of power applications

Applications

This DC-DC buck converter module is commonly used in:

• DIY mobile power banks

• Arduino and Raspberry Pi projects

• Battery-powered monitoring systems

• RC cars, toys, and robotics

• Automotive electronics

• Communication devices

How to Use Output Voltage

This module can work in adjustable voltage mode (default) or fixed output mode:

• Adjustable Mode: Use directly after powering.

• Fixed Voltage Mode: Cut the wire and solder pads at the required voltage position:

  • 12V → solder 12V pads

  • 9V → solder 9V pads

  • 5V → solder 5V pads

  • 3.3V → solder 3.3V pads

  • 2.5V → solder 2.5V pads

  • 1.8V → solder 1.8V pads

⚠️ Important: Input voltage must always be greater than output voltage (step-down only). Avoid reverse polarity to prevent damage.

Package Includes

• 1 x Mini DC-DC Buck Converter Module (3A)